package cn.tedu.jdbc;

import java.sql.*;
import java.util.Scanner;

public class JDBCDemo1 {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        /*
        1.
        2.
        3.
        4.
        5.
         */
        // 1.
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "200326"
        );
        //3.
        Statement statement = connection.createStatement();
        //4.
        //  接收用户输入:用户名、密码、昵称、年龄
        Scanner scanner = new Scanner(System.in);
        System.out.println("用户名:");
        String username = scanner.nextLine();
        System.out.println("密码:");
        String password = scanner.nextLine();
        System.out.println("昵称:");
        String nickname = scanner.nextLine();
        System.out.println("年龄:");
        Integer age = scanner.nextInt();
        //字符串拼接方式执行SQL, "+变量名+" ,将变量的值嵌入到SQL语句中;
        String sql = "INSERT INTO userinfo(username,password,nickname,age) VALUES('"+username+"','"+password+"','"+nickname+"',"+age+")";
        int i = statement.executeUpdate(sql);
        //5.断开数据库连接
        connection.close();
    }
}
